from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A strong, low-density, highly corrosion-resistant, lustrous white metallic element that occurs widely in igneous rocks and is used to alloy aircraft metals for low weight, strength, and high-temperature stability. Atomic number 22; atomic weight 47.87 melting point 1,660°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A chemical element, atomic number 22; it is a strong, corrosion-resistant transition metal, used to make light alloys for aircraft etc.
from the GNU version of the Collaborative International Dictionary of English
- n. An elementary substance found combined in the minerals manaccanite, rutile, sphene, etc., and isolated as an infusible iron-gray amorphous powder, having a metallic luster. It burns when heated in the air. Symbol Ti. Atomic weight 48.1.
from The Century Dictionary and Cyclopedia
- n. As obtained by Moissan in the fused condition by means of an electric furnace, although not quite free from carbon, metallic titanium is not unlike silicon, but whiter, lustrous, very hard, but brittle, of specific gravity 4.87. It burns when heated in the air, and is attacked by the common mineral acids.
- n. Chemical symbol, Ti; atomic weight, 48.1. A metal which is not found native, but as artificially prepared is a dark-gray powder having a decided metallic luster, and resembling iron in appearance.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
From Latin Tītān, Titan; see Titan.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Titan + -ium. (Wiktionary)